Crystal structure of superconducting BaPb0.7Bi0.15Sb0.15O3
作者： W.T. Fu , D.J.W. IJdo
DOI: 10.1016/S0038-1098(01)00116-8
关键词:
摘要: Abstract Neutron powder diffraction data have been used to investigate the structure of superconducting BaPb0.7Bi0.15Sb0.15O3 (Tc=5.3 K). The Rietveld profile refinement has shown that it is tetragonal, space group I4/mcm, with lattice parameters a=6.0405(1) A and c=8.5812(3) A. consists, thus, disordered arrangement Pb, Bi Sb atoms averaged (Pb,Bi,Sb)–O distance 2.155 A. Its can be viewed as distortion ideal cubic perovskite by cooperative tilt (Pb,Bi,Sb)O6 octahedra along primitive [001]p axis (∼6.7°), was previously observed for phase in BaPb1−xBixO3 system.
harvard.edu
elsevier.com
sci-hub.se 参考文章(16)
W.T. Fu, R. de Gelder, R.A.G. de Graaff, Crystal structure of the ordered perovskite: BaBi0.5Sb0.5O3 Materials Research Bulletin. ,vol. 32, pp. 657- 662 ,(1997) , 10.1016/S0025-5408(97)00011-1
W.T. Fu, D.J.W. Ijdo, A comparative study on the structure of APbO3 (A=Ba,Sr) Solid State Communications. ,vol. 95, pp. 581- 585 ,(1995) , 10.1016/0038-1098(95)00334-7
R. J. Cava, B. Batlogg, J. J. Krajewski, R. Farrow, L. W. Rupp, A. E. White, K. Short, W. F. Peck, T. Kometani, Superconductivity near 30 K without copper: the Ba 0.6 K 0.4 BiO 3 perovskite Nature. ,vol. 332, pp. 814- 816 ,(1988) , 10.1038/332814A0
H. M. Rietveld, A profile refinement method for nuclear and magnetic structures Journal of Applied Crystallography. ,vol. 2, pp. 65- 71 ,(1969) , 10.1107/S0021889869006558
R. J. Cava, B. Batlogg, G. P. Espinosa, A. P. Ramirez, J. J. Krajewski, W. F. Peck, L. W. Rupp, A. S. Cooper, Superconductivity at 3.5 K in BaPb0.75Sb0.25O3: why is Tc so low? Nature. ,vol. 339, pp. 291- 293 ,(1989) , 10.1038/339291A0
G. Thornton, A.J. Jacobson, A powder neutron diffraction determination of the structure of BaPbO3 at 4.2K Materials Research Bulletin. ,vol. 11, pp. 837- 841 ,(1976) , 10.1016/0025-5408(76)90123-9
R. Micnas, J. Ranninger, S. Robaszkiewicz, Superconductivity in narrow-band systems with local nonretarded attractive interactions Reviews of Modern Physics. ,vol. 62, pp. 113- 171 ,(1990) , 10.1103/REVMODPHYS.62.113
W.T. Fu, A neutron powder diffraction study on BaBi0.5Sb0.5O3 Solid State Communications. ,vol. 116, pp. 461- 464 ,(2000) , 10.1016/S0038-1098(00)00354-9
C. M. Varma, Missing valence states, diamagnetic insulators, and superconductors Physical Review Letters. ,vol. 61, pp. 2713- 2716 ,(1988) , 10.1103/PHYSREVLETT.61.2713
L.J. De Jongh, A comparative study of (BI)polaronic (super)conductivity in high- and low-Tc superconducting oxides Physica C-superconductivity and Its Applications. ,vol. 152, pp. 171- 216 ,(1988) , 10.1016/0921-4534(88)90011-1